The impressive footage was captured by Mark Johnston from his backyard in Scottsdale, Arizona.<br/>
Credit: Ma<b<br/>r/>rk Johnston

Music: A Rising Sun by Alan Ellis / courtesy of Epidemic Sound

Lagos, Nigeria is the largest city in Africa with over 22 million people, facing big challenges like a fast-growing young population, poor infrastructure, and rising sea levels. But with strong leadership from Governor Akinwunmi Ambode...

Deep sea mining, seafloor vents, underwater drones, bioluminescent sharks, and the disturbing effects of ocean acidification highlight the near future of oceanographic discovery.

NASA has a three-phase plan to send humans to Mars by 2040, including building new spacecraft, testing deep-space missions, and learning how to live on the Red Planet. Alongside efforts by private companies like SpaceX, NASA is working...

Atlanta's Mercedes-Benz Stadium is the most expensive stadium ever built. The $1.6 billion price tag was driven by a spectacular retractable roof design, an LED video board that is by far the world's largest, and the pursuit of LEED...

To fight climate change, countries need to support research, recruit science experts, and help companies develop clean technology through partnerships and government programs. Citizens also play an important role by staying involved in...

Making things like cement, steel, and chemicals uses a lot of energy and is one of the hardest parts of the economy to clean up. A big problem is that about half the energy is wasted as heat, but better factory design and using things...

As the planet warms, there's more water vapor in the air, which makes storms stronger and causes heavier rain and snow. This extra heat and humidity can also make it dangerous to live in some places, especially at night when bodies can’t...

One of the best ways to cut pollution from transportation is to make cities easier to walk or bike in and to improve public transit, like Bus Rapid Transit (BRT), which is cheaper than building subways and still very effective. Cities...

California’s cap-and-trade program is seen as the most successful way to put a price on carbon in the world. It uses a market system where companies buy and sell permits to pollute, but there's a minimum price to keep costs from dropping...

The Arctic is warming quickly, and this is changing the jet stream—a strong wind high in the sky that affects weather. The jet stream is becoming slower and more wavy, which causes extreme weather to last longer, like very cold winters...

The tremendous growth happening in Africa presents humanity with a once-in-a-species opportunity: to make (nearly) an entire continent skip development of dirty fossil fuels, and be powered by renewable energy instead.

Burning coal and natural gas to make electricity causes the most pollution globally, but policies like feed-in tariffs and renewable energy standards help encourage the switch to wind and solar. Texas has been successful in growing clean...

The oceans are very important in climate change because they take in almost 90% of the heat trapped by greenhouse gases and a lot of carbon dioxide. This makes the oceans warmer and more acidic, which has led to record-low sea ice,...

Role of Solar Energy in Alberta. This is a clip from the Simba Creative documentary, Without Leaving Anyone Behind.